More nonsense from Parrott over at RW.
Jay R. Yablon wrote: To sum up, it has long been said based on Bell that: “No locally realistic theory can ever reproduce all of the predictions of quantum mechanics.”
But what actually now seem to be the case is that: *No locally *probabilistic* theory can ever reproduce all of the predictions of quantum mechanics.*
nonsense Parrott wrote:I don’t find your analysis convincing. Some of the problems can be seen from your summary above.
(1) This is philosophy, neither mathematics nor physics. I’m not going to comment on it because I don’t have a precise understanding of what you mean by “locally probabilistic theory”. By comparison “local realistic theory” has a precise mathematical meaning as the urn model, which is easily seen to be mathematically equivalent to any of the historical formulations.
It is not philosophy at all; it is a direct physical consequence of the EPR-Bohm scenario itself. The best that
ANY theory can do for that scenario is predict that the outcomes for A and B will be 50-50 + or - 1.
nonsense Parrott wrote:(2) Your objection is not to Bell’s theorem itself, but to one particular proof of it. Even if one proof should be wrong (and this one is not wrong, in my opinion), that doesn’t disprove the theorem. How much will you bet that you can find 16 probabilities for the slips in the urn so that drawing slips from the urn reproduces the quantum mechanical correlations? That is a good indication of your belief in the truth of the theorem.
Now that is a real howler there!

There is actually no proof of Bell's theory whatsoever. There is mathematical proof of the inequalities and that is it. There is no connection to reality nor to locality.
nonsense Parrott wrote:(3) In another post, Richard Gill has already given a proof of Bell’s theorem which does not rely on the step that you and Christian question. That proof simply observes that the CHSH sum is a linear function on the convex set of all probability distributions. It is an elementary fact that such a function assumes its maximum (or minimum) on the extreme points of the convex set. The extreme points of this set are easily seen to be the probability distributions which assign probability 1 to one particular kind of slip (like all slips ++-+). Thus the CHSH sums are bounded by 2 if that is true for all 16 possible slips, which can easily be checked. This proof doesn’t have any “counterfactuality” in it.
All that does is to mathematically prove the CHSH inequality. Again, it has no connection to reality nor to locality.
more nonsense Parrott wrote:I don’t expect to be posting much after this, if at all, so I’ll close with a general comment unrelated to your analysis. When people invest their time deciphering a paper, they hope for some return on their investment. Christian’s papers are complicated and obscurely written, in my opinion. If he clearly stated what might be the payoff for the considerable effort, he might garner more readers.
But who will invest his time to read a paper from an author who has published others with titles like “Disproof of Bell’s Theorem”? Christian has not disproved Bell’s theorem as it is generally understood by the physics community, and hardly anyone outside SciPhysicsFoundations will believe that he has. Instead, they will believe that he doesn’t understand the usual statements of Bell’s theorem.
If his Clifford algebra model has some unusual merit, he will find it to his advantage to clearly state it. If he thinks it provides a better definition of “local realistic” than the standard one embodied in the urn model, it would be better to state that directly rather than to make unbelievable claims about disproving Bell’s theorem.
There are plenty of people outside of this forum that think that Joy is right. They don't come forward because of the nonsense like you have just spewed.
It is not that hard to understand geometric algebra. I would advise you to get to it. Once you do, it is a very easy task to "decipher" Joy's work.
http://challengingbell.blogspot.com/201 ... f-joy.htmlThe computer program GAViewer confirms that Joy's math is 100 percent correct. And as one can see from the computer code, it is remarkably simple.
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